Ferrite shield located intermediate a wireless power transmitter and receiver and method of using same
AssigneeAptiv Technologies AG
InventorsGeorge Powell, Jr., James Cook
Life of this patent
Estimating the term…
Abstract
An adapter device is configured to interface between a wireless power receiver that includes a first array of magnets arranged around a receiver coil in the wireless power receiver and a wireless power transmitter lacking a corresponding array of magnets arranged around a source coil in the wireless power transmitter. The adapter device includes a substrate and a ferrite shield formed of a magnetic material and configured to be placed between the wireless power receiver and the wireless power transmitter.
Claims14
An adapter device configured to interface with a wireless power transmitter having a first magnetic shield surrounding a source coil, the adapter device comprising:
- a substrate;
- and
- a ferrite shield formed of a magnetic material;
- and
- a second magnetic shield embedded in the substrate in a location proximate to the ferrite shield and arranged coaxially with the ferrite shield.
A method of interfacing with a wireless power transmitter having a first magnetic shield surrounding a source coil, comprising:
- providing an adapter device having a planar substrate, a ferrite shield embedded within the planar substrate, and a second magnetic shield embedded within the planar substrate;
- locating the second magnetic shield proximate to the ferrite shield;
- and
- arranging the second magnetic shield coaxially with the ferrite shield.
A wireless power charging device comprising:
- a wireless power transmitter having a first magnetic shield surrounding a plurality of source coils;
- and
- an adapter device to interface with the wireless power transmitter, the adapter device comprising:
- a substrate;
- and
- a ferrite shield embedded in the substrate, the ferrite shield positioned to overlap with at least some of the plurality of source coils;
- and
- a second magnetic shield embedded in the substrate in a location proximate to the ferrite shield and arranged coaxially with the ferrite shield.
Dependencies are inferred from the claim text.